Dolby Laboratories has filed patent infringement lawsuits in the U.S. and Germany against Research In Motion, a leading maker of smartphones. The lawsuits accuse RIM of patent infringement and seeks to seek recover financial damages and/or halt sales of the many RIM products that infringe Dolby’s patents.

“Litigation was regrettably our last resort after RIM declined to pay for the use of Dolby’s technology,” said Andy Sherman, executive vice president and general counsel of Dolby.

The lawsuits explain that RIM infringes Dolby patents covering highly efficient digital audio compression technologies which allow manufacturers and consumers to provide and enjoy high quality audio while using extremely limited amounts of transmission and/or storage space for such audio. RIM employs Dolby’s patented technologies in its Blackberry smart phones and Playbook tablet devices, without having obtained licenses from Dolby, the lawsuits say. All other major smart phone makers have agreed to license the Dolby technologies which are the subject of this litigation.

Dolby’s patented technologies, which have been incorporated into the international standard known as High Efficiency Advanced Audio Coding (HE AAC), provide the core of HE AAC. Demonstrating the value of the Dolby technologies, HE AAC is widely used in consumer electronics devices such as smart phones, portable music players, and computer tablets to play back music and other digitized audio that has been compressed to less than 10% of its original digital file size.

The U.S. lawsuit was filed in the U.S. District Court for the Northern District of California. The German lawsuit was filed in the District Court of Mannheim in Mannheim, Germany.